User Manual
Table Of Contents
- Copyright Statement
- Federal Communication Commission Interference Statement
- 1.1 Advantages of VoIP to Businesses
- 1.2 SIP – Most Popular VoIP Protocol
- 1.3 VoIP-Friendly Networking Concepts
- 2.1 Operation Modes
- 2.2 Wireless Modes
- 2.3 Topologies of Network Application
- 3.1 Overview of WIFI-ATA
- 3.2 Key Features of WIFI-ATA
- 3.3 Outlook of WIFI-ATA
- 3.4 Web Configuration Environment
- 4.1 Quickly Setup (Setup Wizard)
- 4.2 Operation Mode
- 4.3 TCP/IP Settings
- 4.4 VoIP Settings
- 4.5 Wireless settings
- 4.6 Firewall settings
- 4.7 Management
- 5.1 How can I make a phone call?
- 5.2 How can I pick up the call waiting while I’m on the phon
- 5.3 How can I make a 3-way conference call?
- 5.4 How can I transfer a call to others?
- 5.5 Why can’t I login to the WIFI-ATA?
- 5.6 Why can’t I access the Internet?
- 5.7 Why can’t I make VoIP phone calls to others?
- 5.8 WIFI-ATA doesn’t respond correctly to key press sometime
4.4.3 NAT Traversal
For sharing the Internet access, routers provide a function called NAT, Network
Address Translation. It helps many computers / network devices can use just one
public IP address. However, it’s not friendly to VoIP devices. NAT Traversal can help
VoIP devices to get through the NAT successfully in order to complete the voice
communication.
WIFI-ATA supports two NAT traversal method “STUN” and “Manual mapping”. STUN
has been described in section 1.3.2 . Manual mapping is to manual configure the
external address and correspond external SIP and RTP port of local SIP and Media
port. It must also configure the port and address mappings in the upper router. The
local SIP and Media port was described in section 4.4.3 .
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